Which specific western US states are confirmed breeding areas for the Western Kingbird?
Answer
Utah, Colorado, and Arizona
Specific locations within the western United States are highlighted as areas where the Western Kingbird is confirmed to breed regularly. Observers looking for nesting pairs in the US should focus their efforts on states like Utah, Colorado, and Arizona, as these areas fall within the core interior West stronghold of the species' breeding distribution. While the overall range covers much of the West, these three states are explicitly mentioned as reliable sites for finding breeding individuals during the appropriate season, contrasting with areas further west like the Pacific Northwest coniferous zones where they are less frequent.

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